Polypodium parasiticum L.
Cyclosorus parasiticus (L.) Farw.
Thelypteris parasitica (L.) Fosberg
Thelypteris fadenii Fosberg & Sachet

Rhizome short- to long-creeping; rhizome scales lanceolate in outline, 7 mm long. Fronds monomorphic, 0.5–1 m tall. Stipe up to 50 cm long, softly hairy. Lamina simply pinnate-pinnatifid, 20–50 cm long with about 20 pairs of pinnae, the basal ones deflexed, not or only slightly reduced; pinnae apex tapering to a point, 5–16 x 1–2 cm, deeply lobed; lobes oblong in outline, rounded truncate, ± entire, 6 x 2.5–4 mm; veins in 8–10 pairs, the lowest pair joined forming an excurrent vein to the sinus-membrane, lower surfaces of lobes typically covered with soft spreading hairs and thick orange or very pale ellipsoid glands usually present on the costules and veins. Indusia hairy.

Forest, seasonally inundated bushland, thicket.

Africa, tropical Asia and Pacific, St. Helena.

Dem. Republic of Congo, Uganda.

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